Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

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000
TXUS20 KNES 221929
SPENES
ZCZC NFDSPENES ALL
SPENES
MDZ000-VAZ000-WVZ000-
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/22/13 1929Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-15       1900Z                        JANKOT
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LOCATION...MARYLAND...VIRGINIA...WEST VIRGINIA...
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ATTN WFOS...LWX...RNK...PBZ...RLX...
ATTN RFCS...MARFC...SERFC...OHRFC...
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EVENT...HEAVY RAIN THREAT
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SATELLITE ANALYSIS AND TRENDS...GOES-15 IN FULL DISK MODE (ALTHOUGH
DEGRADED RESOLUTION) DEPICTS A SHORT WAVE IMPULSE MOVING NE THROUGH OH
VALLEY HELPING PROVIDE FAVORABLE UPPER LEVEL SUPPORT TO INCREASE LIFT FROM
E TN NNE THROUGH CENTRAL AND E WV. VIS IMAGERY ALSO DEPICTS INCREASING
CONVECTIVE DEVELOPMENT WITH IR SHOWING SEVERAL CELLS DEVELOPING ALONG
THIS AXIS. OBJECTIVE ANALYSIS SHOWS HIGH AMOUNTS OF INSTABILITY WITH
LIS RUNNING -6 TO -8C AND CAPES APPROACHING 3000 J/KG... ALSO PROVIDING
INGREDIENTS NECESSARY TO SUPPORT HEAVY RAINS. BLENDED TPW PRODUCT SUGGEST
PWATS IN THE 1.3-1.4" RANGE.  EXPECT COVERAGE OF HEAVY RAIN TO INCREASE
FOR MUCH OF DISCUSSION REGION NEXT FEW HOURS WITH RATES OF 1-2"/HR
POSSIBLE IN BEST CONVECTION. 3 HR HIGH RES FFG IS ALSO ON THE LOW SIDE
(AS LOW AS 1.5-2.0" IN CENTRAL WV)

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SHORT TERM OUTLOOK VALID 1945-2245Z...MEDIUM CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...EXPECT DIURNALLY DRIVEN CONVECTION TO CONTINUE FOR
NEXT FEW HOURS FROM E TN NNE THROUGH MUCH OF CENTRAL AND E WV. RATES OF
1-2"/HR IS EXPECTED IN DEEPEST CORES/BEST CONVECTION. WITH FFG RELATIVELY
LOW THE REGION SHOULD BE CLOSELY MONITORED FOR POSSIBLE FF.
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....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP)....
....NESDIS IS A MEMBER OF 12 PLANET....
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FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE
PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL
SSDPrecip@noaa.gov
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FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB:
http://www.ssd.noaa.gov/PS/PCPN/
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FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB:
http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php
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LAT...LON 3953 8046 3923 7872 3699 8039 3751 8179
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NNNN
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